If you just want to play for fun then casinos are a valid choice, however you'd be better off with a physical casino where you can soak up the atmosphere and maybe get free drinks while playing. Just be aware that you're likely to lose every bit of money that you allocate to spend there - they didn't build all the beautiful big buildings in a place like Vegas from winners. Virtual casinos are a slightly boring experience, once you think beyond all the cartoony graphics, side game distractions and music meant to entice you in. There's probably more money to be made in sports betting, but the bookmakers are very good at their job so you have to be eagle eyed and very good with your picking to win.